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(Article of periodic en Anglais - 2000)

Document title

Sediment entrainment by a soft-bedded glacier : a model based on regelation into the bed

Authors(s) and Affiliation(s)

IVERSON N.R. ;

Abstract

Experimental results indicate that wet-based, soft-bedded glaciers may penetrate their substrates by regelation (melting and refreezing) and thereby entrain sediment. In principle, there should be a steady depth of penetration at which the downward regelation speed, driven by the interfacial effective pressure, equals the basal melt rate. Herein, the magnitude and distribution of penetration are estimated for the case of a glacier resting on a deformable bed with channelized basal drainage. This situation is applicable to some modern ice masses, West Antarctic Ice Sheet, and past ice masses, southern lobes of the Laurentide Ice Sheet

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2000, vol. 25, no8 [pp. 881-893]

Bibliographic references : 41 ref.

Collation : Illustration ;

Language

Anglais

Localisation

Laboratoire INTERGEO - Paris

INIST-CNRS, Cote INIST : 17355

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2001.
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